Traction-engine.



E. F. NORELIUS.

TRACTION ENGINE. APPLICATION FILED Aue.24. |914'.

Patented May23,191.

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INVENTOR l reizza;

WIITNESSES: A

E.4 F. NQBELIUS. TRACTION ENGINE.

APPLICATION FILED AUG-24, 1914.

Patented May 23,1916.

4 SHEETS-SHEET?- l N V ENTOR WITNESSES:

E. F. NORELIUS.

TRACTION ENGINE.

APPLICATION FILED Aue.24. 1914-.

' Patented May 23,1916.

WTNESSES:

E. F. NORELIUS.

E TRACTION ENGINE.

APPLlcAloN FILED AuG.24. |914.

1 ,184,008. Patented 23, 1916. f

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f Be it known that I, -EMIL F-. --NonELIUs, 'a citizen of the United States, residing atI EMILE. NoRELIUs, or Ienomn, ILLINOIS,

AssIeNoIz. To THE IIoLT MANUFACTURING COMPANY; or srocx'ron, oAnIroImIA, A coRPom'rI'oN oFoALIromvIA,

TRAcaIoN-ENGINE.

Specicefti'on of Letters Pia-tent. l

' PatentedMayzsJaIcgp l y original application medrebruary 16,1914, seal. Np.`s1s,ss 7. Divided and ithis. application sled Augus= Y. x 24,1914. seriamafesane; 'x-

Peoria, in the county of Peoria and State of Illinois, have invented new and useful Improvements in Traction-Engines, of 'which the following is a specification. f

This invention relates to traction engines ofthe self-laying'track variety; the present application being a division of my original lapplication Ser. No.` 818,837, filed February -The invention consists generally in the combination with a traction engine mountedv on a pair of endless, flexible, self-laying,v tracks or traction members 'of means acting e ers `for steering through the traction mem the machine.

It should be said that the construction here detailed is for use particularly'in con- 1' nection with engines of. the charactershown and described mv my `copendimg .case Ser;

No'. 820,504, filed February 24, 1914, \in which the entire weight of the vehicle is supported upon the two endless, flexible traction members; .it'v being necessary, :by reason ofthe doing awa of the Aordinary steering wheels and steermg mechanism, to. steer throughthe traction members, all in' a manner shortly to'v be described.

,e Having reference tothe accompanying drawings-Figure 1 a detail side eleva-A tionlof one end of a tractorV with parts .broken away. Fig; 2 is a" detail plan 'view in section with parts broken avmy. Eig.l 3. is a section along line 3- 3 of Fig. 2 on'fan enlarged scale, with parts omitted. nfEig; 4 1" is a section along linee-4 ofFig 3'. Fig.'.

5 is a .section along line 5 .5 of Fig. '4. Fig.

6 is a section along'line (i1-6 of Fig.i 3; A is the main framefsupported by means of the springs A1 on' the roller-truck A? with` rollers As adapted to travel-on the endless, l.

self-layingtrackA".

axle A5 vonthe frame A( mesh witha bull Apinion A8 on a shaft A 'i rotatably mountedbnlthe frame' A. This shaftBs. v

B6 isasliding clutch member splined to A4 is av driving-sprocketmounted on A is 'an endless,flexible,i' selflaying tr'aokfg adapted to travel over'the driving sprocket A? andY furnishv a .track'falongwhich the gear. A.

' It willjbsetd 'that the parte bote de. scribed are 1n duplicate, one on either side"4 I of the machine. They are, however,identi v ca l 1n every respect, and will suffice for both. 3

in the bearings B1 a description of one l f 1 .60. B isa drivelshaftldrivenby any suitable.

lshaft carries at itsinward end a reduction carries' on its end a miter pinion B2 convstantlyin mesh with the miter gears B3- B4, f

which gears are rotatably mounted but held -A against longitudinal movement .along `a the shaft B5 in opposition-toclutch -jaws B7 Bson the'gears B3 B4r respectively and y adapted to be actuatedjby'a yoke B9 controlled in any suitable manner -to reverse the direction of movement ofthe shaft B- with respect to the shaftB to move the machine'v .forward or reverse.

The shaft Bihas at either-end a combined clutch Iand brake assembly. These assemblies .are in each case lice for both.

-C is a driving pinio'nin mesh with the gear A1,lo mounted on the sleeve C1, which sleeve is rotatable on the shaft B5 and carries -a clutch spider C2.

C 's .af clutch drum keyed to the shaft C5. C*t C4. are brake shoes adapted to frictionally engage the inner bearing surface yof the drum 'C3 and" slidable along the guide pins C5 onfthe spider C2.

C is arocker blockvrockably or rotatably i .mounted about'the sleevefCl. inside the drum,-

C3. ,-'This rocker block has slidably mounted on. either side ofthe shaft B5 the pins C7 'shoulderedto'feng'age'tlie yoke C? which are held in- .position against the shoulders by thenuts C95 C1" is a. pivotal one -oftheyokes C8- and the clutch shoes C4.-

C is `m'adjustable pivotal link inter'- posed lbetween the other'yoke -C? and shoe C4. The yokes C8 are thus free to .move slightly with respect to the block C6, t

C12 1s a* controlling arm projecting! outidentical, anda description of one will suflink-'interposed between .A lo@ wardly from one side of the rocker block C" face of the brake drum C3.

having pivotally mounted thereon a pin C13, which pin is in slidable engagement with an arm C11 on the'spider C2. The spring C15, surrounding the pin pressing against the shoulder C16 at one end andthe arm C1A1 at the other, tends to separate the arms C12 C11 and thus yieldingly wedge the blocks C1 apart and clamp them against the sur- This movement is limited by the nuts C11.

D is a hub carried on the arm D1 of the spider C2. This hub carries a shaft D2 on -which is rotatably mounted a pinion D3.

D11 .is a yielding spring interposed be-l tween the block D9 and theadjustable nut D12. Y

D13 is a shoulder on the pin D1 to limit the movement of the pin with respect to the block D9. "D11 D15 are stops on the clutch wheel D5 to limit the rotary progress of the pinion D3 with respect to the wheel.

E is a'brake and guard bracket on th frame A partially surrounding the brake wheel D5.

E1 is a brake band engaging the wheel D5 and anchored at one end on the bracket E.

E2 is a brake lever to which is pivotally mounted the free end of the brake band E1. E3 is a brake shaft on which the lever is mounted and E4 is a hand lever wlereby the brake band may be tightened.

It will be evident that, while I have shown in my drawings an operative device, still changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention. I wish, therefore, that my drawings be regarded as in a sense diagrammatic.

The use and operation of the invention are as follows: In operating the tractor, the engine will, of course, be started in the usual manner and the clutchthrown in to move the machine either forward or backward, depending on which of the two miter gears B113l1 is in mesh with the pinion B2. Since the springs C15 hold the two clutches in the operating position, the machine will move forward in a straight line, since both traction members A6 will be moved forward.

with equal force and velocity. Whenit is desired, however, to turn the machlne to one side or the other, the forward movement of one of the traction members A is decreased by manipulation of the brake band. The

first the movement of the brake wheel.l 'As this takes place the clutch spider continues to rotate, now, however, more rapidly than the brake wheel, and this results in a rotation of the pinion on the spider, owing to the change in relative velocities. The result of this is to move the cam on the pinion around to draw in on the cam yoke and gradually rock the rocker block against the tension o-f the larger spring and draw the two clutch shoes out of contact with the clutch' drum. This continues until the pinion comes in contact with one or the other of the stops on the brake wheel. Then no further relative movement can be had and the braking effect of the brake band on the brake wheel is transmitted through the gearing to the traction member itself. Thus a single movement of the brake lever operates to disconnect the clutch irstl so as to no longer drive its traction member and subsequently to exert a braking effect so as to decrease its forward movement to turn the machine. l

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. A traction engine comprising in combination, a pair of traction members, driving means therefor, a pair of clutches interposed one between the driving member and each of the traction members, means for manually interrupting theV operation of either one of said clutches, and means automatically responsive to the manual operation to yieldingly resist the movement of the tractor member subsequent to said interruption.

2. In a traction engine, the combination of a driving member, traction members driven therefrom, clutches interposed'between the driving member and the traction members, and means for operating said vclutches automatically responsive and oper- 3. In a traction engine, the combination of an endless, flexible, self-laying traction member, a drive shaft, driving gears interposed between said shaft and the traction member, a' clutch interposed between the driving gears and the drive shaft, and means responsive to the operation of the clutch and operative subsequent thereto for resisting the movementof the traction member.

4. In' a traction engine, the combination of the main frame, a self-laying traction member forming a ground support for the frame, driving connections for said traction member, a clutch interposed in said driving connections and manually operative to disconnect the powerfrom the traction member, and means automatically responsive to brakeband is tightened up soas to arrest at the manual operation of the clutch for -ap- 180 frame,- `drivingcol'mections for said traction member, a clutch interposed iny said driving connections and manually operative to ldisconnect the power fromthe traction member, andA means 'automatically responsive to the operation of the clutch for transmitting v through the clutch -a brakingforce to the traction member. l

6. In a tractionengine, the combination'l ofthe main frame, a traction member on each side of the main frame, driving mechanism having .a power connection with said tractlon member, andmeansfor steering the Vehicle through the traction ymembers, 1n-

cluding a clutch interposed in the power' f connection for each traction'member, means for operating a clutch to disconne its respective traction member from the driving mechanism and subsequently' transmit a braking force to the tractionmember In testimony whereof I have hereunto set e my hand inthe presence of two subscribing witnesses.

v EMIL F. NORELIUS. Witnesses:

.' J 03N H. I-IERRING,

HEALEY. 

